There appear to be two Jnanasutra's, with different Tibetan orthography for their names. Yeshe Do (Tibetan: ye shes mdo one flourished from the 5th - 6th centuries and was a disciple of Sri Singha, the other was a principal translator Yeshe De (Wylie: Ye shes sde; 8th-9th century), lotsawa, of the first wave of the Nyingmapa, known as the Ngagyur (Wylie: sna ’gyur), which began in the 7th century and continued until the time of Atisha.